The solutions are not related. Since they are created under different apps from under MyApps, they are likely in two different environments, even if they are both identical Decision Modeler projects. One key way to check would be to examine the web address used to access each of these solutions, this gives key information about the machine environment where the project is stored. In either case, the platform they are running on is the Decision Management Platform (not OutSystems) which we have running in multiple different environments for different purposes. If you wanted to integrate either of them with a FICO Application Studio project, the process would be the same. You would create a link from the FICO Application Studio project, and then supply the web service call to the specific version of the Decision Modeler project you want it to run, which you can find by going to View Links for the Component you want to call, which is just a couple items lower in the menu than the Configure choice you use to edit your rules.